VS05R1 Results
Submitted checklist.txt and checklist.tex is also available |
[Summary | AIPS | Difmap ] |
Observation code | : | VS05R1 | AIPS Version | : | 31DEC00 | ||
Date of Observation | : | 2002/165 | Difmap Version | : | 2.4a | ||
Source Name | : | J1150-0023 | vsop_difmap used | : | Yes | ||
Calibration Source(s) | : | ||||||
Ground telescopes | : | KA,MP,HO | Model Fitted to data | : | Yes | ||
Tracking Station(s) | : | UZ | Image made | : | No | ||
Correlator | : | Mitaka |
Abstract
No space fringes, 1.5 mas fit, so expected. Agrees with the pre-launch (very well). |
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FITLD | clint = 0.25 digicor = -1 delcorr = -1 |
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INDXR | cparm = 0, 0, 0.25; |
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ANTAB | infile='antab.txt' |
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Remade this as the MOPRA values weren't read (L01 rather than L1?) |
APCAL |
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ACCOR | solint 5 |
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CLCAL | refant=1; |
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Amplitude calibration solutions applied. Hobart as ref |
FRING | dparm 2,200,200,0,0.5,0;aparm(7)=0.1;solint 5,10,15 |
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No space fringes. Best GRT at 10m |
SNSMO |
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CLCAL | opcode 'calp';opty 'ambg' |
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Grt fringes applied; AMBG gives a poor sol. POLY gives a very poor solution. |
FRING | dparm 2,0,0,0,2,0;aparm(7)=0.1;solint 10;dofit=4 |
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Found NO solutions. Deleted table |
FRING | dparm 2,100,100,0,2,0;aparm(7)=0.1;solint 10; |
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Fine tune GRTs. The solutions are poor for the second source. And effect the other. Why is that - they should be seperate. |
CLCAL | opcode 'calp';opty 'ambg' |
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No VSOP data now |
CLCOR | opcode 'gain';antenna 0;clcorprm 1.13,0 opcode 'gain';antenna 0;clcorprm 1/sqrt(1.13),0 |
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SNEDT/SNCOR/CLCAL | opc 'zphs/zrat/zdel' ant 4;sour 'j1150-00' |
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Zero VSOP sols, cal on target source, for stacking |
KRING | dofit 4;cpar 0.5,2000,400,-1 |
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Try stacking |
KRING | dofit 4;cpar 0.5,100,40,-1; solmo ''/'nr' |
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Improve solution for the GRTs |
CLCAL | sour 'j1150-00' |
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SPLIT | aparm(1)=2 0; |
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Av within IF |
FITTP |
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Data written out for analysis in Difmap |
AIPS Input Files
Comments Attempting automatic reduction. History has a lot of restarts! |
AIPS Output Files
Phase selfcal applied? | No |
Global amplitude selfcal (gscal) applied? | No |
Amplitude selfcal on non-global timescales used? | No |
Modelfit made and saved? | Yes |
Image Made and saved? | No |
Comments on Difmap processing
J1215-17 is flat - so gains seem okay |
Modelfit | ||||
Ampl, Phase vs (u,v) Distance PS (22 kb) JPEG (34 kb) |
Ampl, Phase vs Time PS (122 kb) JPEG 1, 2 |
(u,v) Coverage PS (19 kb) JPEG (25 kb) | Closure Phase vs Time PS (95 kb) JPEG 1 |
Image with model components PS (825 bytes) |
More details on the Images and Modelfits are found in this page.